Guide · E-files
Nail drill RPM and torque
30K and 35K are maker top speeds, not working speeds. What RPM and torque figures mean, the speeds Medicool suggests, and why torque can't be compared.
Short answer
An RPM figure such as 30K or 35K is the maker's stated top speed, and the pages we read do not say how it was measured or whether it holds under load. Most filing happens well below the maximum: Medicool's own FAQ suggests about 5,000 to 25,000 RPM depending on the job.[1] Torque is how hard the motor resists slowing when the bit meets the nail, but few makers publish it and none we found say how they measure it, so you cannot compare torque across brands.
What the speed number means
RPM is revolutions per minute: how many times the bit turns each minute. The number on the box is the top of the speed range. A few examples from maker pages:
| Drill | Maker's stated top speed |
|---|---|
| KUPA Passport NEXT kit | 30,000 RPM[2] |
| Medicool Pro Power 35K (corded) | 35,000 RPM[3] |
| Medicool Pro Power 35K Portable | 35,000 RPM[4] |
| Young Nails EF300P portable | 0 to 35,000 RPM[5] |
| Kiara Sky Beyond Pro Portable | Up to 35,000 RPM[6] |
None of these pages says the speed was measured with a bit pressing on a nail. A drill's speed with nothing touching the bit is its no-load speed, and it can drop once the bit meets resistance. Read the RPM as the maker's design figure, not as proof of how the drill behaves in use.
You rarely need the top speed
Medicool's FAQ suggests these working ranges, and says to start low and increase gradually:[1]
| Job | Medicool FAQ suggestion |
|---|---|
| Natural nail prep and cuticle work | About 5,000-10,000 RPM |
| Gel removal | About 15,000-20,000 RPM |
| Acrylic removal | About 20,000-25,000 RPM |
Treat these as one maker's starting points, not a rule. Medicool's own 2025 guide gives different ranges, and both say the right speed depends on the bit and your experience.[7] Even the acrylic range stays below the 30K and 35K maximums in the table above.
So a higher top speed is headroom. It does not make a drill gentler or more precise, and it does not make filing safer.
Medicool positions its 20K model (up to 20,000 RPM) for beginners and personal use, and its 30K and 35K models for professionals.[1] That is a sensible way to read the numbers: more speed is for experienced hands doing heavier removal.
Torque: the number most makers skip
Torque is the motor's turning force. A drill with more torque slows down less when you press the bit against a nail, so it keeps cutting at the speed you set.
Medicool lists its Pro Power 35K Portable at 4.8 N-cm of torque, but it does not state how it measured that.[4] The KUPA and Young Nails pages we cite give speed but no torque figure. Without a shared test method, one brand's torque number cannot be set against another's, so we do not rank drills by torque.
What to compare instead
- The speed range you will actually use. Check that the low end is comfortable for prep work, not just that the top end is high.
- Fine speed control. A knob or buttons you can adjust while working, and a display if you want to repeat settings. KUPA's Passport NEXT has a digital RPM display and a pause button.[2]
- Forward and reverse. Needed for left-handed work and two-way bits. See forward and reverse.
- Bit fit. The handpiece should state its shank size. See do all bits fit all drills.
- Service. Who repairs it and what the warranty excludes. See nail drill care and repairs.
Speed, heat and the nail
Running flat out for long periods is hard on the drill. Medicool advises against running a drill continuously at maximum speed for long periods.[1]
It is also hard on the nail. NailKnowledge says it is very quick and easy to seriously damage the nail plate with an e-file,[8] and it lists speed control among the factors behind rings of fire.[9]
Next
Questions
Is 35,000 RPM better than 30,000 RPM?
Not on its own. It is the maker's stated top speed, and Medicool's FAQ suggests working ranges of about 5,000 to 25,000 RPM depending on the job. Speed control at the low end matters more for most work.[1]
What RPM should I use for gel removal?
Medicool's FAQ suggests about 15,000 to 20,000 RPM, starting low and increasing gradually. Its 2025 guide gives a different range, so treat any figure as a starting point that depends on the bit and your experience.[1][7]
What RPM is right for a beginner?
Medicool positions its 20K model, up to 20,000 RPM, for beginners and personal use, and its 30K and 35K models for professionals. Whatever the drill, start at the low end of its range.[1]
Can I compare torque between nail drill brands?
No. Medicool lists 4.8 N-cm for its 35K Portable but does not say how it measured it, and most makers publish no torque figure at all. Without a shared method the numbers are not comparable.[4]